This paper introduces the calibrating device for the multi-function time measuringinstrument with mechanical stopuwatch, millisecond meter, electric stop-watch, time testing instrumentand so on.

 
  • 介绍一种能对可检测机械秒表、毫秒仪、电秒表、机械钟表、电子钟表等的多功能时间检测仪进行校准的装置。
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